北海市西村港跨海大桥主桥总体设计
|
摘要
北海市西村港跨海大桥跨越西村港水域,桥梁总长1.78 km,其中主桥采用双塔双索面叠合梁斜拉桥,跨径布置为(38.9+70+238+70+38.9)m=455.8 m。针对主桥的桥型方案设计、总体布置、计算等内容进行介绍,对同类型桥梁有一定借鉴意义。经过计算得出,结构刚度大,各钢结构应力小于规范限制,桥面板满足B类预应力混凝土要求,整体稳定系数具有较大安全度,均满足规范要求。
Xicungang Cross-sea Bridge in Beihai City spans the water area of Xicungang. The total length of this bridge is 1.78 km, in which the main bridge is a double-pylon double-plane composite beam cable-stayed bridge. Its span is arranged by 455.8 m(38.9 m+70 m+238 m+70 m+38.9 m). This paper introduces the scheme design, overall layout and calculation contents of the main bridge, which can be referred for the similar bridges. The calculation result shows that the structural stiffness is high, and various steel structural stresses are less than the standard limits, the deck slab meets the requirements of Class B pre-stressed concrete and the integral stability coefficient has the greater safety, which all meet the standard requirements.
Xicungang Cross-sea Bridge in Beihai City spans the water area of Xicungang. The total length of this bridge is 1.78 km, in which the main bridge is a double-pylon double-plane composite beam cable-stayed bridge. Its span is arranged by 455.8 m(38.9 m+70 m+238 m+70 m+38.9 m). This paper introduces the scheme design, overall layout and calculation contents of the main bridge, which can be referred for the similar bridges. The calculation result shows that the structural stiffness is high, and various steel structural stresses are less than the standard limits, the deck slab meets the requirements of Class B pre-stressed concrete and the integral stability coefficient has the greater safety, which all meet the standard requirements.
引文
[1]北海市西村港跨海大桥可行性报告[R].上海:上海林同炎李国豪土建工程咨询有限公司,2018.
[2]陈虎成,张家元,刘明虎,等.石首长江公路大桥主桥总体设计[J].桥梁建设,2017,47(5):6-11.
[3]吉伯海,傅中秋.钢桥[M].北京:人民交通出版社,2016.
[4]易云焜,岳青,严和仲.叠合梁斜拉桥主梁施工工序方案比选[J].公路,2012(12):36-38.
[2]陈虎成,张家元,刘明虎,等.石首长江公路大桥主桥总体设计[J].桥梁建设,2017,47(5):6-11.
[3]吉伯海,傅中秋.钢桥[M].北京:人民交通出版社,2016.
[4]易云焜,岳青,严和仲.叠合梁斜拉桥主梁施工工序方案比选[J].公路,2012(12):36-38.